"""
    +=
    -=
    *=
    /=
    //=
    %=
    **=
"""
# 例如：
a = 10
a += 1 # a = a + 1
print(a)

b = 10
b -= 1 # b = b - 1
print(b)

# 注意：先算复合赋值运算符右边的表达式，再算赋值运算
c = 10
c *= 1 + 2 * 2 # c = c * (1 + 2 * 2)
print(c)

